Breast milk storage has never been cuter- Separate inlet and outlet makes it less likely to cause bacterial infection- Bags are pre-sterilized to prevent bacterial contamination- Double-lined zipper makes it leak-proof- Self-standing design makes it easier to store- Can withstand -20 degrees to 100 degrees- Holds up to 200ml- Made with BPA-free, non-toxic material- Made in Korea- Each box contains 30 bags, this is a package of 3 boxes and is at HKD 185.00 / approximately TWD 700.00